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CDCVF2505DG4 Fiches technique(PDF) 1 Page - Texas Instruments

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No de pièce CDCVF2505DG4
Description  3.3-V Clock Phase-Lock Loop Clock Driver
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

CDCVF2505DG4 Fiches technique(HTML) 1 Page - Texas Instruments

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Edge Detect
Typical <10 MHz
Power Down
3-State
1
8
3
2
5
7
CLKOUT
1Y0
1Y1
1Y2
1Y3
CLKIN
PLL
25 W
25 W
25 W
25 W
25 W
B0246-01
Copyright © 2016, Texas Instruments Incorporated
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An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
CDCVF2505
SCAS640G – JULY 2000 – REVISED AUGUST 2016
CDCVF2505 3.3-V Clock Phase-Lock Loop Clock Driver
1
1 Features
1
Phase-Lock Loop Clock Driver for Synchronous
DRAM and General-Purpose Applications
Spread Spectrum Clock Compatible
Operating Frequency: 24 MHz to 200 MHz
Low Jitter (Cycle-to-Cycle): < |150 ps|
(Over 66 MHz to 200 MHz Range)
Distributes One Clock Input to One Bank of Five
Outputs (CLKOUT Used to Tune the Input-Output
Delay)
Three-States Outputs When There Is No Input
Clock
Operates From Single 3.3-V Supply
Available in 8-Pin TSSOP and 8-Pin SOIC
Packages
Consumes Less Than 100 mA (Typical) in Power-
Down Mode
Internal Feedback Loop Is Used to Synchronize
the Outputs to the Input Clock
25-Ω On-Chip Series Damping Resistors
Integrated RC PLL Loop Filter Eliminates the
Need for External Components
2 Applications
Synchronous DRAMs
Industrial Applications
General-Purpose Zero-Delay Clock Buffers
3 Description
The CDCVF2505 is a high-performance, low-skew,
low-jitter, phase-lock loop (PLL) clock driver. This
device uses a PLL to precisely align the output clocks
(1Y[0-3] and CLKOUT) to the input clock signal
(CLKIN)
in
both
frequency
and
phase.
The
CDCVF2505 operates at 3.3 V and also provides
integrated series-damping resistors that make it ideal
for driving point-to-point loads.
One bank of five outputs provides low-skew, low-jitter
copies of CLKIN. Output duty cycles are adjusted to
50 percent, independent of duty cycle at CLKIN. The
device automatically goes into power-down mode
when no input signal is applied to CLKIN.
The loop filter for the PLLs is included on-chip. This
minimizes the component count, space, and cost.
The CDCVF2505 is characterized for operation from
–40°C to 85°C.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
CDCVF2505
SOIC (8)
4.90 mm × 3.90 mm
TSSOP (8)
4.40 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Functional Block Diagram


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